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f6bcefef | 1 | /* Main simulator entry points specific to the CRIS. |
4a94e368 | 2 | Copyright (C) 2004-2022 Free Software Foundation, Inc. |
f6bcefef HPN |
3 | Contributed by Axis Communications. |
4 | ||
5 | This file is part of the GNU simulators. | |
6 | ||
7 | This program is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
4744ac1b JB |
9 | the Free Software Foundation; either version 3 of the License, or |
10 | (at your option) any later version. | |
f6bcefef HPN |
11 | |
12 | This program is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
4744ac1b JB |
17 | You should have received a copy of the GNU General Public License |
18 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ | |
f6bcefef HPN |
19 | |
20 | /* Based on the fr30 file, mixing in bits from the i960 and pruning of | |
21 | dead code. */ | |
22 | ||
6df01ab8 MF |
23 | /* This must come before any other includes. */ |
24 | #include "defs.h" | |
25 | ||
8cfc9a18 MF |
26 | #include <stdlib.h> |
27 | #include <errno.h> | |
28 | #include <unistd.h> | |
29 | ||
f6bcefef HPN |
30 | #include "libiberty.h" |
31 | #include "bfd.h" | |
80e5c09e | 32 | #include "elf-bfd.h" |
f6bcefef | 33 | |
8cfc9a18 | 34 | #include "sim/callback.h" |
f6bcefef | 35 | #include "sim-main.h" |
f6bcefef | 36 | #include "sim-options.h" |
072d63a8 | 37 | #include "sim-hw.h" |
f6bcefef | 38 | #include "dis-asm.h" |
c5a2e012 | 39 | #include "environ.h" |
f6bcefef | 40 | |
f6bcefef HPN |
41 | /* Used with get_progbounds to find out how much memory is needed for the |
42 | program. We don't want to allocate more, since that could mask | |
43 | invalid memory accesses program bugs. */ | |
44 | struct progbounds { | |
45 | USI startmem; | |
46 | USI endmem; | |
80e5c09e HPN |
47 | USI end_loadmem; |
48 | USI start_nonloadmem; | |
f6bcefef HPN |
49 | }; |
50 | ||
51 | static void free_state (SIM_DESC); | |
80e5c09e | 52 | static void get_progbounds_iterator (bfd *, asection *, void *); |
f6bcefef HPN |
53 | static SIM_RC cris_option_handler (SIM_DESC, sim_cpu *, int, char *, int); |
54 | ||
55 | /* Since we don't build the cgen-opcode table, we use the old | |
56 | disassembler. */ | |
57 | static CGEN_DISASSEMBLER cris_disassemble_insn; | |
58 | ||
59 | /* By default, we set up stack and environment variables like the Linux | |
60 | kernel. */ | |
61 | static char cris_bare_iron = 0; | |
62 | ||
63 | /* Whether 0x9000000xx have simulator-specific meanings. */ | |
aad3b3cb | 64 | char cris_have_900000xxif = 0; |
f6bcefef | 65 | |
c10b3605 HPN |
66 | /* Used to optionally override the default start address of the |
67 | simulation. */ | |
68 | static USI cris_start_address = 0xffffffffu; | |
69 | ||
70 | /* Used to optionally add offsets to the loaded image and its start | |
71 | address. (Not used for the interpreter of dynamically loaded | |
72 | programs or the DSO:s.) */ | |
73 | static int cris_program_offset = 0; | |
74 | ||
466b1d33 HPN |
75 | /* What to do when we face a more or less unknown syscall. */ |
76 | enum cris_unknown_syscall_action_type cris_unknown_syscall_action | |
77 | = CRIS_USYSC_MSG_STOP; | |
78 | ||
f6bcefef HPN |
79 | /* CRIS-specific options. */ |
80 | typedef enum { | |
81 | OPTION_CRIS_STATS = OPTION_START, | |
82 | OPTION_CRIS_TRACE, | |
83 | OPTION_CRIS_NAKED, | |
c10b3605 HPN |
84 | OPTION_CRIS_PROGRAM_OFFSET, |
85 | OPTION_CRIS_STARTADDR, | |
f6bcefef | 86 | OPTION_CRIS_900000XXIF, |
466b1d33 | 87 | OPTION_CRIS_UNKNOWN_SYSCALL |
f6bcefef HPN |
88 | } CRIS_OPTIONS; |
89 | ||
90 | static const OPTION cris_options[] = | |
91 | { | |
92 | { {"cris-cycles", required_argument, NULL, OPTION_CRIS_STATS}, | |
93 | '\0', "basic|unaligned|schedulable|all", | |
94 | "Dump execution statistics", | |
95 | cris_option_handler, NULL }, | |
96 | { {"cris-trace", required_argument, NULL, OPTION_CRIS_TRACE}, | |
97 | '\0', "basic", | |
98 | "Emit trace information while running", | |
99 | cris_option_handler, NULL }, | |
100 | { {"cris-naked", no_argument, NULL, OPTION_CRIS_NAKED}, | |
101 | '\0', NULL, "Don't set up stack and environment", | |
102 | cris_option_handler, NULL }, | |
103 | { {"cris-900000xx", no_argument, NULL, OPTION_CRIS_900000XXIF}, | |
104 | '\0', NULL, "Define addresses at 0x900000xx with simulator semantics", | |
105 | cris_option_handler, NULL }, | |
466b1d33 HPN |
106 | { {"cris-unknown-syscall", required_argument, NULL, |
107 | OPTION_CRIS_UNKNOWN_SYSCALL}, | |
108 | '\0', "stop|enosys|enosys-quiet", "Action at an unknown system call", | |
109 | cris_option_handler, NULL }, | |
c10b3605 HPN |
110 | { {"cris-program-offset", required_argument, NULL, |
111 | OPTION_CRIS_PROGRAM_OFFSET}, | |
112 | '\0', "OFFSET", | |
113 | "Offset image addresses and default start address of a program", | |
114 | cris_option_handler }, | |
115 | { {"cris-start-address", required_argument, NULL, OPTION_CRIS_STARTADDR}, | |
116 | '\0', "ADDRESS", "Set start address", | |
117 | cris_option_handler }, | |
f6bcefef HPN |
118 | { {NULL, no_argument, NULL, 0}, '\0', NULL, NULL, NULL, NULL } |
119 | }; | |
120 | \f | |
f6bcefef HPN |
121 | /* Handle CRIS-specific options. */ |
122 | ||
123 | static SIM_RC | |
124 | cris_option_handler (SIM_DESC sd, sim_cpu *cpu ATTRIBUTE_UNUSED, int opt, | |
125 | char *arg, int is_command ATTRIBUTE_UNUSED) | |
126 | { | |
127 | /* The options are CRIS-specific, but cpu-specific option-handling is | |
128 | broken; required to being with "--cpu0-". We store the flags in an | |
129 | unused field in the global state structure and move the flags over | |
130 | to the module-specific CPU data when we store things in the | |
131 | cpu-specific structure. */ | |
132 | char *tracefp = STATE_TRACE_FLAGS (sd); | |
c10b3605 | 133 | char *chp = arg; |
f6bcefef HPN |
134 | |
135 | switch ((CRIS_OPTIONS) opt) | |
136 | { | |
137 | case OPTION_CRIS_STATS: | |
138 | if (strcmp (arg, "basic") == 0) | |
139 | *tracefp = FLAG_CRIS_MISC_PROFILE_SIMPLE; | |
140 | else if (strcmp (arg, "unaligned") == 0) | |
141 | *tracefp | |
142 | = (FLAG_CRIS_MISC_PROFILE_UNALIGNED | |
143 | | FLAG_CRIS_MISC_PROFILE_SIMPLE); | |
144 | else if (strcmp (arg, "schedulable") == 0) | |
145 | *tracefp | |
146 | = (FLAG_CRIS_MISC_PROFILE_SCHEDULABLE | |
147 | | FLAG_CRIS_MISC_PROFILE_SIMPLE); | |
148 | else if (strcmp (arg, "all") == 0) | |
149 | *tracefp = FLAG_CRIS_MISC_PROFILE_ALL; | |
150 | else | |
151 | { | |
466b1d33 HPN |
152 | /* Beware; the framework does not handle the error case; |
153 | we have to do it ourselves. */ | |
154 | sim_io_eprintf (sd, "Unknown option `--cris-cycles=%s'\n", arg); | |
f6bcefef HPN |
155 | return SIM_RC_FAIL; |
156 | } | |
157 | break; | |
158 | ||
159 | case OPTION_CRIS_TRACE: | |
160 | if (strcmp (arg, "basic") == 0) | |
161 | *tracefp |= FLAG_CRIS_MISC_PROFILE_XSIM_TRACE; | |
162 | else | |
163 | { | |
164 | sim_io_eprintf (sd, "Unknown option `--cris-trace=%s'\n", arg); | |
165 | return SIM_RC_FAIL; | |
166 | } | |
167 | break; | |
168 | ||
169 | case OPTION_CRIS_NAKED: | |
170 | cris_bare_iron = 1; | |
171 | break; | |
172 | ||
173 | case OPTION_CRIS_900000XXIF: | |
174 | cris_have_900000xxif = 1; | |
175 | break; | |
176 | ||
c10b3605 HPN |
177 | case OPTION_CRIS_STARTADDR: |
178 | errno = 0; | |
179 | cris_start_address = (USI) strtoul (chp, &chp, 0); | |
180 | ||
181 | if (errno != 0 || *chp != 0) | |
182 | { | |
183 | sim_io_eprintf (sd, "Invalid option `--cris-start-address=%s'\n", | |
184 | arg); | |
185 | return SIM_RC_FAIL; | |
186 | } | |
187 | break; | |
188 | ||
189 | case OPTION_CRIS_PROGRAM_OFFSET: | |
190 | errno = 0; | |
191 | cris_program_offset = (int) strtol (chp, &chp, 0); | |
192 | ||
193 | if (errno != 0 || *chp != 0) | |
194 | { | |
195 | sim_io_eprintf (sd, "Invalid option `--cris-program-offset=%s'\n", | |
196 | arg); | |
197 | return SIM_RC_FAIL; | |
198 | } | |
199 | break; | |
200 | ||
466b1d33 HPN |
201 | case OPTION_CRIS_UNKNOWN_SYSCALL: |
202 | if (strcmp (arg, "enosys") == 0) | |
203 | cris_unknown_syscall_action = CRIS_USYSC_MSG_ENOSYS; | |
204 | else if (strcmp (arg, "enosys-quiet") == 0) | |
205 | cris_unknown_syscall_action = CRIS_USYSC_QUIET_ENOSYS; | |
206 | else if (strcmp (arg, "stop") == 0) | |
207 | cris_unknown_syscall_action = CRIS_USYSC_MSG_STOP; | |
208 | else | |
209 | { | |
210 | sim_io_eprintf (sd, "Unknown option `--cris-unknown-syscall=%s'\n", | |
211 | arg); | |
212 | return SIM_RC_FAIL; | |
213 | } | |
214 | break; | |
215 | ||
f6bcefef HPN |
216 | default: |
217 | /* We'll actually never get here; the caller handles the error | |
218 | case. */ | |
219 | sim_io_eprintf (sd, "Unknown option `%s'\n", arg); | |
220 | return SIM_RC_FAIL; | |
221 | } | |
222 | ||
223 | /* Imply --profile-model=on. */ | |
224 | return sim_profile_set_option (sd, "-model", PROFILE_MODEL_IDX, "on"); | |
225 | } | |
226 | ||
80e5c09e HPN |
227 | /* An ELF-specific simplified ../common/sim-load.c:sim_load_file, |
228 | using the program headers, not sections, in order to make sure that | |
229 | the program headers themeselves are also loaded. The caller is | |
230 | responsible for asserting that ABFD is an ELF file. */ | |
231 | ||
232 | static bfd_boolean | |
233 | cris_load_elf_file (SIM_DESC sd, struct bfd *abfd, sim_write_fn do_write) | |
234 | { | |
235 | Elf_Internal_Phdr *phdr; | |
236 | int n_hdrs; | |
237 | int i; | |
238 | bfd_boolean verbose = STATE_OPEN_KIND (sd) == SIM_OPEN_DEBUG; | |
80e5c09e HPN |
239 | |
240 | phdr = elf_tdata (abfd)->phdr; | |
241 | n_hdrs = elf_elfheader (abfd)->e_phnum; | |
242 | ||
243 | /* We're only interested in PT_LOAD; all necessary information | |
244 | should be covered by that. */ | |
245 | for (i = 0; i < n_hdrs; i++) | |
246 | { | |
247 | bfd_byte *buf; | |
248 | bfd_vma lma = STATE_LOAD_AT_LMA_P (sd) | |
249 | ? phdr[i].p_paddr : phdr[i].p_vaddr; | |
250 | ||
251 | if (phdr[i].p_type != PT_LOAD) | |
252 | continue; | |
253 | ||
254 | buf = xmalloc (phdr[i].p_filesz); | |
255 | ||
256 | if (verbose) | |
5ee0bc23 MF |
257 | sim_io_printf (sd, |
258 | "Loading segment at 0x%" BFD_VMA_FMT "x, size 0x%lx\n", | |
b3fbb288 | 259 | lma, phdr[i].p_filesz); |
80e5c09e HPN |
260 | |
261 | if (bfd_seek (abfd, phdr[i].p_offset, SEEK_SET) != 0 | |
262 | || (bfd_bread (buf, phdr[i].p_filesz, abfd) != phdr[i].p_filesz)) | |
263 | { | |
b3fbb288 | 264 | sim_io_eprintf (sd, |
5ee0bc23 MF |
265 | "%s: could not read segment at 0x%" BFD_VMA_FMT "x, " |
266 | "size 0x%lx\n", | |
b3fbb288 | 267 | STATE_MY_NAME (sd), lma, phdr[i].p_filesz); |
80e5c09e HPN |
268 | free (buf); |
269 | return FALSE; | |
270 | } | |
271 | ||
272 | if (do_write (sd, lma, buf, phdr[i].p_filesz) != phdr[i].p_filesz) | |
273 | { | |
b3fbb288 | 274 | sim_io_eprintf (sd, |
5ee0bc23 MF |
275 | "%s: could not load segment at 0x%" BFD_VMA_FMT "x, " |
276 | "size 0x%lx\n", | |
b3fbb288 | 277 | STATE_MY_NAME (sd), lma, phdr[i].p_filesz); |
80e5c09e HPN |
278 | free (buf); |
279 | return FALSE; | |
280 | } | |
281 | ||
282 | free (buf); | |
283 | } | |
284 | ||
285 | return TRUE; | |
286 | } | |
287 | ||
f6bcefef HPN |
288 | /* Cover function of sim_state_free to free the cpu buffers as well. */ |
289 | ||
290 | static void | |
291 | free_state (SIM_DESC sd) | |
292 | { | |
293 | if (STATE_MODULES (sd) != NULL) | |
294 | sim_module_uninstall (sd); | |
295 | sim_cpu_free_all (sd); | |
296 | sim_state_free (sd); | |
297 | } | |
298 | ||
c10b3605 HPN |
299 | /* Helper struct for cris_set_section_offset_iterator. */ |
300 | ||
301 | struct offsetinfo | |
302 | { | |
303 | SIM_DESC sd; | |
304 | int offset; | |
305 | }; | |
306 | ||
307 | /* BFD section iterator to offset the LMA and VMA. */ | |
308 | ||
309 | static void | |
310 | cris_set_section_offset_iterator (bfd *abfd, asection *s, void *vp) | |
311 | { | |
312 | struct offsetinfo *p = (struct offsetinfo *) vp; | |
313 | SIM_DESC sd = p->sd; | |
314 | int offset = p->offset; | |
315 | ||
fd361982 | 316 | if ((bfd_section_flags (s) & SEC_ALLOC)) |
c10b3605 | 317 | { |
fd361982 | 318 | bfd_vma vma = bfd_section_vma (s); |
c10b3605 | 319 | |
fd361982 | 320 | bfd_set_section_vma (s, vma + offset); |
c10b3605 HPN |
321 | } |
322 | ||
323 | /* This seems clumsy and inaccurate, but let's stick to doing it the | |
324 | same way as sim_analyze_program for consistency. */ | |
fd361982 AM |
325 | if (strcmp (bfd_section_name (s), ".text") == 0) |
326 | STATE_TEXT_START (sd) = bfd_section_vma (s); | |
c10b3605 HPN |
327 | } |
328 | ||
329 | /* Adjust the start-address, LMA and VMA of a SD. Must be called | |
330 | after sim_analyze_program. */ | |
331 | ||
332 | static void | |
333 | cris_offset_sections (SIM_DESC sd, int offset) | |
334 | { | |
335 | bfd_boolean ret; | |
336 | struct bfd *abfd = STATE_PROG_BFD (sd); | |
337 | asection *text; | |
338 | struct offsetinfo oi; | |
339 | ||
340 | /* Only happens for usage error. */ | |
341 | if (abfd == NULL) | |
342 | return; | |
343 | ||
344 | oi.sd = sd; | |
345 | oi.offset = offset; | |
346 | ||
347 | bfd_map_over_sections (abfd, cris_set_section_offset_iterator, &oi); | |
348 | ret = bfd_set_start_address (abfd, bfd_get_start_address (abfd) + offset); | |
349 | ||
350 | STATE_START_ADDR (sd) = bfd_get_start_address (abfd); | |
351 | } | |
352 | ||
80e5c09e HPN |
353 | /* BFD section iterator to find the highest and lowest allocated and |
354 | non-allocated section addresses (plus one). */ | |
f6bcefef | 355 | |
80e5c09e HPN |
356 | static void |
357 | get_progbounds_iterator (bfd *abfd ATTRIBUTE_UNUSED, asection *s, void *vp) | |
f6bcefef HPN |
358 | { |
359 | struct progbounds *pbp = (struct progbounds *) vp; | |
360 | ||
fd361982 | 361 | if ((bfd_section_flags (s) & SEC_ALLOC)) |
f6bcefef | 362 | { |
fd361982 AM |
363 | bfd_size_type sec_size = bfd_section_size (s); |
364 | bfd_size_type sec_start = bfd_section_vma (s); | |
f6bcefef HPN |
365 | bfd_size_type sec_end = sec_start + sec_size; |
366 | ||
367 | if (sec_end > pbp->endmem) | |
368 | pbp->endmem = sec_end; | |
369 | ||
370 | if (sec_start < pbp->startmem) | |
371 | pbp->startmem = sec_start; | |
80e5c09e | 372 | |
fd361982 | 373 | if ((bfd_section_flags (s) & SEC_LOAD)) |
80e5c09e HPN |
374 | { |
375 | if (sec_end > pbp->end_loadmem) | |
376 | pbp->end_loadmem = sec_end; | |
377 | } | |
378 | else if (sec_start < pbp->start_nonloadmem) | |
379 | pbp->start_nonloadmem = sec_start; | |
380 | } | |
381 | } | |
382 | ||
383 | /* Get the program boundaries. Because not everything is covered by | |
384 | sections in ELF, notably the program headers, we use the program | |
385 | headers instead. */ | |
386 | ||
387 | static void | |
388 | cris_get_progbounds (struct bfd *abfd, struct progbounds *pbp) | |
389 | { | |
390 | Elf_Internal_Phdr *phdr; | |
391 | int n_hdrs; | |
392 | int i; | |
393 | ||
394 | pbp->startmem = 0xffffffff; | |
395 | pbp->endmem = 0; | |
396 | pbp->end_loadmem = 0; | |
397 | pbp->start_nonloadmem = 0xffffffff; | |
398 | ||
399 | /* In case we're ever used for something other than ELF, use the | |
400 | generic method. */ | |
401 | if (bfd_get_flavour (abfd) != bfd_target_elf_flavour) | |
402 | { | |
403 | bfd_map_over_sections (abfd, get_progbounds_iterator, pbp); | |
404 | return; | |
405 | } | |
406 | ||
407 | phdr = elf_tdata (abfd)->phdr; | |
408 | n_hdrs = elf_elfheader (abfd)->e_phnum; | |
409 | ||
410 | /* We're only interested in PT_LOAD; all necessary information | |
411 | should be covered by that. */ | |
412 | for (i = 0; i < n_hdrs; i++) | |
413 | { | |
414 | if (phdr[i].p_type != PT_LOAD) | |
415 | continue; | |
416 | ||
417 | if (phdr[i].p_paddr < pbp->startmem) | |
418 | pbp->startmem = phdr[i].p_paddr; | |
419 | ||
420 | if (phdr[i].p_paddr + phdr[i].p_memsz > pbp->endmem) | |
421 | pbp->endmem = phdr[i].p_paddr + phdr[i].p_memsz; | |
422 | ||
423 | if (phdr[i].p_paddr + phdr[i].p_filesz > pbp->end_loadmem) | |
424 | pbp->end_loadmem = phdr[i].p_paddr + phdr[i].p_filesz; | |
425 | ||
426 | if (phdr[i].p_memsz > phdr[i].p_filesz | |
427 | && phdr[i].p_paddr + phdr[i].p_filesz < pbp->start_nonloadmem) | |
428 | pbp->start_nonloadmem = phdr[i].p_paddr + phdr[i].p_filesz; | |
429 | } | |
430 | } | |
431 | ||
432 | /* Parameter communication by static variables, hmm... Oh well, for | |
433 | simplicity. */ | |
434 | static bfd_vma exec_load_addr; | |
435 | static bfd_vma interp_load_addr; | |
436 | static bfd_vma interp_start_addr; | |
437 | ||
438 | /* Supposed to mimic Linux' "NEW_AUX_ENT (AT_PHDR, load_addr + exec->e_phoff)". */ | |
439 | ||
440 | static USI | |
441 | aux_ent_phdr (struct bfd *ebfd) | |
442 | { | |
443 | return elf_elfheader (ebfd)->e_phoff + exec_load_addr; | |
444 | } | |
445 | ||
446 | /* We just pass on the header info; we don't have our own idea of the | |
447 | program header entry size. */ | |
448 | ||
449 | static USI | |
450 | aux_ent_phent (struct bfd *ebfd) | |
451 | { | |
452 | return elf_elfheader (ebfd)->e_phentsize; | |
453 | } | |
454 | ||
455 | /* Like "NEW_AUX_ENT(AT_PHNUM, exec->e_phnum)". */ | |
456 | ||
457 | static USI | |
458 | aux_ent_phnum (struct bfd *ebfd) | |
459 | { | |
460 | return elf_elfheader (ebfd)->e_phnum; | |
461 | } | |
462 | ||
463 | /* Like "NEW_AUX_ENT(AT_BASE, interp_load_addr)". */ | |
464 | ||
465 | static USI | |
466 | aux_ent_base (struct bfd *ebfd) | |
467 | { | |
468 | return interp_load_addr; | |
469 | } | |
470 | ||
471 | /* Like "NEW_AUX_ENT(AT_ENTRY, exec->e_entry)". */ | |
472 | ||
473 | static USI | |
474 | aux_ent_entry (struct bfd *ebfd) | |
475 | { | |
476 | ASSERT (elf_elfheader (ebfd)->e_entry == bfd_get_start_address (ebfd)); | |
477 | return elf_elfheader (ebfd)->e_entry; | |
478 | } | |
479 | ||
480 | /* Helper for cris_handle_interpreter: like sim_write, but load at | |
481 | interp_load_addr offset. */ | |
482 | ||
483 | static int | |
072d63a8 | 484 | cris_write_interp (SIM_DESC sd, SIM_ADDR mem, const unsigned char *buf, int length) |
80e5c09e HPN |
485 | { |
486 | return sim_write (sd, mem + interp_load_addr, buf, length); | |
487 | } | |
488 | ||
489 | /* Cater to the presence of an interpreter: load it and set | |
490 | interp_start_addr. Return FALSE if there was an error, TRUE if | |
491 | everything went fine, including an interpreter being absent and | |
492 | the program being in a non-ELF format. */ | |
493 | ||
494 | static bfd_boolean | |
495 | cris_handle_interpreter (SIM_DESC sd, struct bfd *abfd) | |
496 | { | |
497 | int i, n_hdrs; | |
80e5c09e HPN |
498 | bfd_byte buf[4]; |
499 | char *interp = NULL; | |
500 | struct bfd *ibfd; | |
501 | bfd_boolean ok = FALSE; | |
502 | Elf_Internal_Phdr *phdr; | |
503 | ||
504 | if (bfd_get_flavour (abfd) != bfd_target_elf_flavour) | |
505 | return TRUE; | |
506 | ||
507 | phdr = elf_tdata (abfd)->phdr; | |
508 | n_hdrs = aux_ent_phnum (abfd); | |
509 | ||
510 | /* Check the program headers for presence of an interpreter. */ | |
511 | for (i = 0; i < n_hdrs; i++) | |
512 | { | |
513 | int interplen; | |
514 | bfd_size_type interpsiz, interp_filesiz; | |
515 | struct progbounds interp_bounds; | |
516 | ||
517 | if (phdr[i].p_type != PT_INTERP) | |
518 | continue; | |
519 | ||
520 | /* Get the name of the interpreter, prepended with the sysroot | |
521 | (empty if absent). */ | |
522 | interplen = phdr[i].p_filesz; | |
523 | interp = xmalloc (interplen + strlen (simulator_sysroot)); | |
524 | strcpy (interp, simulator_sysroot); | |
525 | ||
526 | /* Read in the name. */ | |
527 | if (bfd_seek (abfd, phdr[i].p_offset, SEEK_SET) != 0 | |
528 | || (bfd_bread (interp + strlen (simulator_sysroot), interplen, abfd) | |
529 | != interplen)) | |
530 | goto interpname_failed; | |
531 | ||
532 | /* Like Linux, require the string to be 0-terminated. */ | |
533 | if (interp[interplen + strlen (simulator_sysroot) - 1] != 0) | |
534 | goto interpname_failed; | |
535 | ||
536 | /* Inspect the interpreter. */ | |
537 | ibfd = bfd_openr (interp, STATE_TARGET (sd)); | |
538 | if (ibfd == NULL) | |
539 | goto interpname_failed; | |
540 | ||
c10b3605 | 541 | /* The interpreter is at least something readable to BFD; make |
80e5c09e HPN |
542 | sure it's an ELF non-archive file. */ |
543 | if (!bfd_check_format (ibfd, bfd_object) | |
544 | || bfd_get_flavour (ibfd) != bfd_target_elf_flavour) | |
545 | goto interp_failed; | |
546 | ||
547 | /* Check the layout of the interpreter. */ | |
548 | cris_get_progbounds (ibfd, &interp_bounds); | |
549 | ||
550 | /* Round down to pagesize the start page and up the endpage. | |
551 | Don't round the *load and *nonload members. */ | |
552 | interp_bounds.startmem &= ~8191; | |
553 | interp_bounds.endmem = (interp_bounds.endmem + 8191) & ~8191; | |
554 | ||
555 | /* Until we need a more dynamic solution, assume we can put the | |
556 | interpreter at this fixed location. NB: this is not what | |
557 | happens for Linux 2008-12-28, but it could and might and | |
558 | perhaps should. */ | |
559 | interp_load_addr = 0x40000; | |
560 | interpsiz = interp_bounds.endmem - interp_bounds.startmem; | |
561 | interp_filesiz = interp_bounds.end_loadmem - interp_bounds.startmem; | |
562 | ||
563 | /* If we have a non-DSO or interpreter starting at the wrong | |
564 | address, bail. */ | |
565 | if (interp_bounds.startmem != 0 | |
566 | || interpsiz + interp_load_addr >= exec_load_addr) | |
567 | goto interp_failed; | |
568 | ||
569 | /* We don't have the API to get the address of a simulator | |
570 | memory area, so we go via a temporary area. Luckily, the | |
571 | interpreter is supposed to be small, less than 0x40000 | |
572 | bytes. */ | |
5ee0bc23 | 573 | sim_do_commandf (sd, "memory region 0x%" BFD_VMA_FMT "x,0x%lx", |
80e5c09e HPN |
574 | interp_load_addr, interpsiz); |
575 | ||
576 | /* Now that memory for the interpreter is defined, load it. */ | |
577 | if (!cris_load_elf_file (sd, ibfd, cris_write_interp)) | |
578 | goto interp_failed; | |
579 | ||
580 | /* It's no use setting STATE_START_ADDR, because it gets | |
581 | overwritten by a sim_analyze_program call in sim_load. Let's | |
582 | just store it locally. */ | |
583 | interp_start_addr | |
584 | = (bfd_get_start_address (ibfd) | |
585 | - interp_bounds.startmem + interp_load_addr); | |
586 | ||
587 | /* Linux cares only about the first PT_INTERP, so let's ignore | |
588 | the rest. */ | |
589 | goto all_done; | |
f6bcefef | 590 | } |
80e5c09e HPN |
591 | |
592 | /* Register R10 should hold 0 at static start (no finifunc), but | |
593 | that's the default, so don't bother. */ | |
594 | return TRUE; | |
595 | ||
596 | all_done: | |
597 | ok = TRUE; | |
598 | ||
599 | interp_failed: | |
600 | bfd_close (ibfd); | |
601 | ||
602 | interpname_failed: | |
603 | if (!ok) | |
604 | sim_io_eprintf (sd, | |
605 | "%s: could not load ELF interpreter `%s' for program `%s'\n", | |
606 | STATE_MY_NAME (sd), | |
607 | interp == NULL ? "(what's-its-name)" : interp, | |
608 | bfd_get_filename (abfd)); | |
609 | free (interp); | |
610 | return ok; | |
f6bcefef HPN |
611 | } |
612 | ||
1c636da0 MF |
613 | extern const SIM_MACH * const cris_sim_machs[]; |
614 | ||
f6bcefef HPN |
615 | /* Create an instance of the simulator. */ |
616 | ||
617 | SIM_DESC | |
618 | sim_open (SIM_OPEN_KIND kind, host_callback *callback, struct bfd *abfd, | |
2e3d4f4d | 619 | char * const *argv) |
f6bcefef HPN |
620 | { |
621 | char c; | |
622 | int i; | |
623 | USI startmem = 0; | |
624 | USI endmem = CRIS_DEFAULT_MEM_SIZE; | |
625 | USI endbrk = endmem; | |
626 | USI stack_low = 0; | |
627 | SIM_DESC sd = sim_state_alloc (kind, callback); | |
628 | ||
80e5c09e HPN |
629 | static const struct auxv_entries_s |
630 | { | |
631 | bfd_byte id; | |
632 | USI (*efn) (struct bfd *ebfd); | |
633 | USI val; | |
634 | } auxv_entries[] = | |
635 | { | |
a3d4b83b HPN |
636 | #define AUX_ENT(a, b) {a, NULL, b} |
637 | #define AUX_ENTF(a, f) {a, f, 0} | |
80e5c09e HPN |
638 | AUX_ENT (AT_HWCAP, 0), |
639 | AUX_ENT (AT_PAGESZ, 8192), | |
640 | AUX_ENT (AT_CLKTCK, 100), | |
a3d4b83b HPN |
641 | AUX_ENTF (AT_PHDR, aux_ent_phdr), |
642 | AUX_ENTF (AT_PHENT, aux_ent_phent), | |
643 | AUX_ENTF (AT_PHNUM, aux_ent_phnum), | |
644 | AUX_ENTF (AT_BASE, aux_ent_base), | |
80e5c09e | 645 | AUX_ENT (AT_FLAGS, 0), |
a3d4b83b | 646 | AUX_ENTF (AT_ENTRY, aux_ent_entry), |
80e5c09e HPN |
647 | |
648 | /* Or is root better? Maybe have it settable? */ | |
649 | AUX_ENT (AT_UID, 500), | |
650 | AUX_ENT (AT_EUID, 500), | |
651 | AUX_ENT (AT_GID, 500), | |
652 | AUX_ENT (AT_EGID, 500), | |
a3d4b83b | 653 | AUX_ENT (AT_SECURE, 0), |
80e5c09e HPN |
654 | AUX_ENT (AT_NULL, 0) |
655 | }; | |
656 | ||
f6bcefef HPN |
657 | /* Can't initialize to "" below. It's either a GCC bug in old |
658 | releases (up to and including 2.95.3 (.4 in debian) or a bug in the | |
659 | standard ;-) that the rest of the elements won't be initialized. */ | |
660 | bfd_byte sp_init[4] = {0, 0, 0, 0}; | |
661 | ||
f9a4d543 | 662 | /* Set default options before parsing user options. */ |
1c636da0 | 663 | STATE_MACHS (sd) = cris_sim_machs; |
d414eb3e | 664 | STATE_MODEL_NAME (sd) = "crisv32"; |
f9a4d543 MF |
665 | current_target_byte_order = BFD_ENDIAN_LITTLE; |
666 | ||
f6bcefef | 667 | /* The cpu data is kept in a separately allocated chunk of memory. */ |
d5a71b11 | 668 | if (sim_cpu_alloc_all (sd, 1) != SIM_RC_OK) |
f6bcefef HPN |
669 | { |
670 | free_state (sd); | |
671 | return 0; | |
672 | } | |
673 | ||
674 | if (sim_pre_argv_init (sd, argv[0]) != SIM_RC_OK) | |
675 | { | |
676 | free_state (sd); | |
677 | return 0; | |
678 | } | |
679 | ||
9db2b719 MF |
680 | /* Add the CRIS-specific option list to the simulator. */ |
681 | if (sim_add_option_table (sd, NULL, cris_options) != SIM_RC_OK) | |
682 | { | |
683 | free_state (sd); | |
684 | return 0; | |
685 | } | |
686 | ||
77cf2ef5 | 687 | /* The parser will print an error message for us, so we silently return. */ |
f6bcefef HPN |
688 | if (sim_parse_args (sd, argv) != SIM_RC_OK) |
689 | { | |
690 | free_state (sd); | |
691 | return 0; | |
692 | } | |
693 | ||
f6bcefef | 694 | /* check for/establish the reference program image */ |
e8f20a28 | 695 | if (sim_analyze_program (sd, STATE_PROG_FILE (sd), abfd) != SIM_RC_OK) |
f6bcefef | 696 | { |
a0956358 HPN |
697 | /* When there's an error, sim_analyze_program has already output |
698 | a message. Let's just clarify it, as "not an object file" | |
699 | perhaps doesn't ring a bell. */ | |
700 | sim_io_eprintf (sd, "(not a CRIS program)\n"); | |
80e5c09e HPN |
701 | free_state (sd); |
702 | return 0; | |
703 | } | |
704 | ||
705 | /* We might get called with the caller expecting us to get hold of | |
706 | the bfd for ourselves, which would happen at the | |
707 | sim_analyze_program call above. */ | |
708 | if (abfd == NULL) | |
709 | abfd = STATE_PROG_BFD (sd); | |
710 | ||
c10b3605 HPN |
711 | /* Adjust the addresses of the program at this point. Unfortunately |
712 | this does not affect ELF program headers, so we have to handle | |
713 | that separately. */ | |
714 | cris_offset_sections (sd, cris_program_offset); | |
715 | ||
716 | if (abfd != NULL && bfd_get_arch (abfd) == bfd_arch_unknown) | |
80e5c09e | 717 | { |
e8f20a28 | 718 | if (STATE_PROG_FILE (sd) != NULL) |
a0956358 | 719 | sim_io_eprintf (sd, "%s: `%s' is not a CRIS program\n", |
e8f20a28 | 720 | STATE_MY_NAME (sd), STATE_PROG_FILE (sd)); |
80e5c09e HPN |
721 | else |
722 | sim_io_eprintf (sd, "%s: program to be run is not a CRIS program\n", | |
723 | STATE_MY_NAME (sd)); | |
f6bcefef HPN |
724 | free_state (sd); |
725 | return 0; | |
726 | } | |
727 | ||
728 | /* For CRIS simulator-specific use, we need to find out the bounds of | |
729 | the program as well, which is not done by sim_analyze_program | |
730 | above. */ | |
80e5c09e | 731 | if (abfd != NULL) |
f6bcefef HPN |
732 | { |
733 | struct progbounds pb; | |
734 | ||
735 | /* The sections should now be accessible using bfd functions. */ | |
80e5c09e | 736 | cris_get_progbounds (abfd, &pb); |
f6bcefef HPN |
737 | |
738 | /* We align the area that the program uses to page boundaries. */ | |
739 | startmem = pb.startmem & ~8191; | |
740 | endbrk = pb.endmem; | |
741 | endmem = (endbrk + 8191) & ~8191; | |
742 | } | |
743 | ||
744 | /* Find out how much room is needed for the environment and argv, create | |
745 | that memory and fill it. Only do this when there's a program | |
8cfc9a18 MF |
746 | specified. |
747 | ||
748 | TODO: Move this to sim_create_inferior and use STATE_PROG_ENVP. */ | |
80e5c09e | 749 | if (abfd != NULL && !cris_bare_iron) |
f6bcefef | 750 | { |
b16c44de | 751 | const char *name = bfd_get_filename (abfd); |
f6bcefef HPN |
752 | /* We use these maps to give the same behavior as the old xsim |
753 | simulator. */ | |
754 | USI envtop = 0x40000000; | |
755 | USI stacktop = 0x3e000000; | |
756 | USI envstart; | |
757 | int envc; | |
758 | int len = strlen (name) + 1; | |
759 | USI epp, epp0; | |
760 | USI stacklen; | |
761 | int i; | |
762 | char **prog_argv = STATE_PROG_ARGV (sd); | |
763 | int my_argc = 0; | |
f6bcefef HPN |
764 | USI csp; |
765 | bfd_byte buf[4]; | |
766 | ||
767 | /* Count in the environment as well. */ | |
c5a2e012 MF |
768 | for (envc = 0; environ[envc] != NULL; envc++) |
769 | len += strlen (environ[envc]) + 1; | |
f6bcefef HPN |
770 | |
771 | for (i = 0; prog_argv[i] != NULL; my_argc++, i++) | |
772 | len += strlen (prog_argv[i]) + 1; | |
773 | ||
774 | envstart = (envtop - len) & ~8191; | |
775 | ||
776 | /* Create read-only block for the environment strings. */ | |
777 | sim_core_attach (sd, NULL, 0, access_read, 0, | |
778 | envstart, (len + 8191) & ~8191, | |
779 | 0, NULL, NULL); | |
780 | ||
781 | /* This shouldn't happen. */ | |
782 | if (envstart < stacktop) | |
783 | stacktop = envstart - 64 * 8192; | |
784 | ||
785 | csp = stacktop; | |
786 | ||
787 | /* Note that the linux kernel does not correctly compute the storage | |
788 | needs for the static-exe AUX vector. */ | |
80e5c09e | 789 | |
13a590ca | 790 | csp -= ARRAY_SIZE (auxv_entries) * 4 * 2; |
f6bcefef HPN |
791 | |
792 | csp -= (envc + 1) * 4; | |
793 | csp -= (my_argc + 1) * 4; | |
794 | csp -= 4; | |
795 | ||
796 | /* Write the target representation of the start-up-value for the | |
797 | stack-pointer suitable for register initialization below. */ | |
798 | bfd_putl32 (csp, sp_init); | |
799 | ||
800 | /* If we make this 1M higher; say 8192*1024, we have to take | |
801 | special precautions for pthreads, because pthreads assumes that | |
802 | the memory that low isn't mmapped, and that it can mmap it | |
803 | without fallback in case of failure (and we fail ungracefully | |
804 | long before *that*: the memory isn't accounted for in our mmap | |
805 | list). */ | |
806 | stack_low = (csp - (7168*1024)) & ~8191; | |
807 | ||
808 | stacklen = stacktop - stack_low; | |
809 | ||
810 | /* Tee hee, we have an executable stack. Well, it's necessary to | |
811 | test GCC trampolines... */ | |
812 | sim_core_attach (sd, NULL, 0, access_read_write_exec, 0, | |
813 | stack_low, stacklen, | |
814 | 0, NULL, NULL); | |
815 | ||
816 | epp = epp0 = envstart; | |
817 | ||
818 | /* Can't use sim_core_write_unaligned_4 without everything | |
819 | initialized when tracing, and then these writes would get into | |
820 | the trace. */ | |
821 | #define write_dword(addr, data) \ | |
822 | do \ | |
823 | { \ | |
824 | USI data_ = data; \ | |
825 | USI addr_ = addr; \ | |
826 | bfd_putl32 (data_, buf); \ | |
8b494522 | 827 | if (sim_core_write_buffer (sd, NULL, NULL_CIA, buf, addr_, 4) != 4)\ |
f6bcefef HPN |
828 | goto abandon_chip; \ |
829 | } \ | |
830 | while (0) | |
831 | ||
832 | write_dword (csp, my_argc); | |
833 | csp += 4; | |
834 | ||
835 | for (i = 0; i < my_argc; i++, csp += 4) | |
836 | { | |
837 | size_t strln = strlen (prog_argv[i]) + 1; | |
838 | ||
8b494522 MF |
839 | if (sim_core_write_buffer (sd, NULL, NULL_CIA, prog_argv[i], epp, |
840 | strln) | |
f6bcefef HPN |
841 | != strln) |
842 | goto abandon_chip; | |
843 | ||
844 | write_dword (csp, envstart + epp - epp0); | |
845 | epp += strln; | |
846 | } | |
847 | ||
848 | write_dword (csp, 0); | |
849 | csp += 4; | |
850 | ||
851 | for (i = 0; i < envc; i++, csp += 4) | |
852 | { | |
c5a2e012 | 853 | unsigned int strln = strlen (environ[i]) + 1; |
f6bcefef | 854 | |
c5a2e012 | 855 | if (sim_core_write_buffer (sd, NULL, NULL_CIA, environ[i], epp, strln) |
f6bcefef HPN |
856 | != strln) |
857 | goto abandon_chip; | |
858 | ||
859 | write_dword (csp, envstart + epp - epp0); | |
860 | epp += strln; | |
861 | } | |
862 | ||
863 | write_dword (csp, 0); | |
864 | csp += 4; | |
865 | ||
80e5c09e HPN |
866 | /* The load address of the executable could presumably be |
867 | different than the lowest used memory address, but let's | |
868 | stick to simplicity until needed. And | |
869 | cris_handle_interpreter might change startmem and endmem, so | |
870 | let's set it now. */ | |
871 | exec_load_addr = startmem; | |
f6bcefef | 872 | |
80e5c09e HPN |
873 | if (!cris_handle_interpreter (sd, abfd)) |
874 | goto abandon_chip; | |
f6bcefef | 875 | |
80e5c09e | 876 | if (bfd_get_flavour (abfd) == bfd_target_elf_flavour) |
13a590ca | 877 | for (i = 0; i < ARRAY_SIZE (auxv_entries); i++) |
80e5c09e HPN |
878 | { |
879 | write_dword (csp, auxv_entries[i].id); | |
880 | write_dword (csp + 4, | |
881 | auxv_entries[i].efn != NULL | |
882 | ? (*auxv_entries[i].efn) (abfd) | |
883 | : auxv_entries[i].val); | |
884 | csp += 4 + 4; | |
885 | } | |
f6bcefef HPN |
886 | } |
887 | ||
888 | /* Allocate core managed memory if none specified by user. */ | |
889 | if (sim_core_read_buffer (sd, NULL, read_map, &c, startmem, 1) == 0) | |
9d67b0a0 | 890 | sim_do_commandf (sd, "memory region 0x%" PRIx32 ",0x%" PRIx32, |
5ee0bc23 | 891 | startmem, endmem - startmem); |
f6bcefef HPN |
892 | |
893 | /* Allocate simulator I/O managed memory if none specified by user. */ | |
894 | if (cris_have_900000xxif) | |
34cf5112 | 895 | sim_hw_parse (sd, "/core/%s/reg %#x %i", "cris_900000xx", 0x90000000, 0x100); |
f6bcefef HPN |
896 | |
897 | /* Establish any remaining configuration options. */ | |
898 | if (sim_config (sd) != SIM_RC_OK) | |
899 | { | |
900 | abandon_chip: | |
901 | free_state (sd); | |
902 | return 0; | |
903 | } | |
904 | ||
905 | if (sim_post_argv_init (sd) != SIM_RC_OK) | |
906 | { | |
907 | free_state (sd); | |
908 | return 0; | |
909 | } | |
910 | ||
911 | /* Open a copy of the cpu descriptor table. */ | |
912 | { | |
913 | CGEN_CPU_DESC cd = cris_cgen_cpu_open_1 (STATE_ARCHITECTURE (sd)->printable_name, | |
914 | CGEN_ENDIAN_LITTLE); | |
915 | for (i = 0; i < MAX_NR_PROCESSORS; ++i) | |
916 | { | |
917 | SIM_CPU *cpu = STATE_CPU (sd, i); | |
918 | CPU_CPU_DESC (cpu) = cd; | |
919 | CPU_DISASSEMBLER (cpu) = cris_disassemble_insn; | |
920 | ||
921 | /* See cris_option_handler for the reason why this is needed. */ | |
922 | CPU_CRIS_MISC_PROFILE (cpu)->flags = STATE_TRACE_FLAGS (sd)[0]; | |
923 | ||
924 | /* Set SP to the stack we allocated above. */ | |
072d63a8 | 925 | (* CPU_REG_STORE (cpu)) (cpu, H_GR_SP, (unsigned char *) sp_init, 4); |
f6bcefef HPN |
926 | |
927 | /* Set the simulator environment data. */ | |
928 | cpu->highest_mmapped_page = NULL; | |
929 | cpu->endmem = endmem; | |
930 | cpu->endbrk = endbrk; | |
931 | cpu->stack_low = stack_low; | |
932 | cpu->syscalls = 0; | |
933 | cpu->m1threads = 0; | |
934 | cpu->threadno = 0; | |
935 | cpu->max_threadid = 0; | |
936 | cpu->thread_data = NULL; | |
937 | memset (cpu->sighandler, 0, sizeof (cpu->sighandler)); | |
938 | cpu->make_thread_cpu_data = NULL; | |
939 | cpu->thread_cpu_data_size = 0; | |
aad3b3cb HPN |
940 | #if WITH_HW |
941 | cpu->deliver_interrupt = NULL; | |
942 | #endif | |
f6bcefef | 943 | } |
aad3b3cb HPN |
944 | #if WITH_HW |
945 | /* Always be cycle-accurate and call before/after functions if | |
946 | with-hardware. */ | |
947 | sim_profile_set_option (sd, "-model", PROFILE_MODEL_IDX, "on"); | |
948 | #endif | |
f6bcefef HPN |
949 | } |
950 | ||
f6bcefef HPN |
951 | cris_set_callbacks (callback); |
952 | ||
953 | return sd; | |
954 | } | |
f6bcefef HPN |
955 | \f |
956 | SIM_RC | |
957 | sim_create_inferior (SIM_DESC sd, struct bfd *abfd, | |
54f7a83a MF |
958 | char * const *argv, |
959 | char * const *env) | |
f6bcefef HPN |
960 | { |
961 | SIM_CPU *current_cpu = STATE_CPU (sd, 0); | |
8cfc9a18 | 962 | host_callback *cb = STATE_CALLBACK (sd); |
f6bcefef HPN |
963 | SIM_ADDR addr; |
964 | ||
80e5c09e | 965 | if (sd != NULL) |
c10b3605 HPN |
966 | addr = cris_start_address != (SIM_ADDR) -1 |
967 | ? cris_start_address | |
968 | : (interp_start_addr != 0 | |
969 | ? interp_start_addr | |
970 | : bfd_get_start_address (abfd)); | |
f6bcefef HPN |
971 | else |
972 | addr = 0; | |
973 | sim_pc_set (current_cpu, addr); | |
974 | ||
0e967299 MF |
975 | /* Standalone mode (i.e. `run`) will take care of the argv for us in |
976 | sim_open() -> sim_parse_args(). But in debug mode (i.e. 'target sim' | |
977 | with `gdb`), we need to handle it because the user can change the | |
978 | argv on the fly via gdb's 'run'. */ | |
979 | if (STATE_PROG_ARGV (sd) != argv) | |
980 | { | |
981 | freeargv (STATE_PROG_ARGV (sd)); | |
982 | STATE_PROG_ARGV (sd) = dupargv (argv); | |
983 | } | |
f6bcefef | 984 | |
54f7a83a MF |
985 | if (STATE_PROG_ENVP (sd) != env) |
986 | { | |
987 | freeargv (STATE_PROG_ENVP (sd)); | |
988 | STATE_PROG_ENVP (sd) = dupargv (env); | |
989 | } | |
990 | ||
8cfc9a18 MF |
991 | cb->argv = STATE_PROG_ARGV (sd); |
992 | cb->envp = STATE_PROG_ENVP (sd); | |
993 | ||
f6bcefef HPN |
994 | return SIM_RC_OK; |
995 | } | |
f6bcefef HPN |
996 | \f |
997 | /* Disassemble an instruction. */ | |
998 | ||
999 | static void | |
1000 | cris_disassemble_insn (SIM_CPU *cpu, | |
1001 | const CGEN_INSN *insn ATTRIBUTE_UNUSED, | |
1002 | const ARGBUF *abuf ATTRIBUTE_UNUSED, | |
1003 | IADDR pc, char *buf) | |
1004 | { | |
1005 | disassembler_ftype pinsn; | |
1006 | struct disassemble_info disasm_info; | |
1007 | SFILE sfile; | |
1008 | SIM_DESC sd = CPU_STATE (cpu); | |
1009 | ||
1010 | sfile.buffer = sfile.current = buf; | |
1011 | INIT_DISASSEMBLE_INFO (disasm_info, (FILE *) &sfile, | |
1012 | (fprintf_ftype) sim_disasm_sprintf); | |
80e5c09e HPN |
1013 | disasm_info.endian = BFD_ENDIAN_LITTLE; |
1014 | disasm_info.read_memory_func = sim_disasm_read_memory; | |
f6bcefef HPN |
1015 | disasm_info.memory_error_func = sim_disasm_perror_memory; |
1016 | disasm_info.application_data = (PTR) cpu; | |
1017 | pinsn = cris_get_disassembler (STATE_PROG_BFD (sd)); | |
1018 | (*pinsn) (pc, &disasm_info); | |
1019 | } |